Sources

found: Britannica online, June 9, 2008(Ahmad; b. 1806; d. 1855, Halq al-Wadi, Tunisia; in full Ahmad Ibn Mustafa; 10th ruler of the Husaynid dynasty of Tunisia; Succeeded his brother as the ruler of Tunis in 1837; succeeded in 1855 by his cousin Muhammad, who reigned until 1859)